Assessing Efficacy and Safety of Lacosamide Compared to Placebo in Reducing Signs and Symptoms of Fibromyalgia Syndrome.
![]() |
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT00401830 |
Recruitment Status :
Completed
First Posted : November 22, 2006
Results First Posted : October 22, 2009
Last Update Posted : July 18, 2018
|
- Study Details
- Tabular View
- Study Results
- Disclaimer
- How to Read a Study Record
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Fibromyalgia Syndrome | Drug: Lacosamide Other: Placebo | Phase 2 |
Expanded Access : An investigational treatment associated with this study is no longer available outside the clinical trial. More info ...
This was a proof-of-concept study and not powered for statistical comparisons.
The trial consisted of a 4-week Titration Phase, an 8-week Maintenance Phase, a 1-week Taper Phase, and a 2-week Safety Follow-Up Phase. If subjects met the eligibility criteria, they were randomized to receive either lacosamide 400mg/day or placebo during the Maintenance Phase. Subjects assigned to lacosamide were titrated from 100mg/day to 400mg/day at weekly intervals of 100mg. All subjects who completed the 4-week Titration Phase entered an 8-week Maintenance Phase. No dose adjustment was allowed during the Maintenance Phase. The Treatment Phase was defined as the combined Titration and Maintenance Phases.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 159 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double (Participant, Investigator) |
Primary Purpose: | Treatment |
Official Title: | A Parallel, Randomized, Double-Blind, Placebo-Controlled, Multicenter Proof of Concept Trial to Assess the Efficacy and Safety of 400 mg/Day Lacosamide Tablets in Subjects With Signs and Symptoms Associated With Fibromyalgia Syndrome |
Study Start Date : | October 2006 |
Actual Primary Completion Date : | February 2008 |
Actual Study Completion Date : | February 2008 |

Arm | Intervention/treatment |
---|---|
Placebo Comparator: Placebo |
Other: Placebo
Matching placebo tablet administered twice daily |
Experimental: Lacosamide
Lacosamide Tablet 400mg daily
|
Drug: Lacosamide
Tablet 400mg daily (200mg twice daily) during 8-week maintenance phase following 4-week titration phase starting at 100mg/day and increasing to 400mg/day at weekly intervals of 100mg
Other Names:
|
- Change From Baseline in Average Daily Pain Score to the Last 2 Weeks of the 12-week Treatment Phase (Based on the Full Analysis Set) [ Time Frame: Baseline, Last 2 weeks of the 12-week Treatment Phase ]The average daily pain score is calculated using an 11-point Likert scale, ranging from 0 (no pain) to 10 (worst pain ever experienced).
- Change From Baseline in Average Daily Pain Score to the Last 2 Weeks of the 12-week Treatment Phase (Based on the Per Protocol Set) [ Time Frame: Baseline, Last 2 weeks of the 12-week Treatment Phase ]The average daily pain score is calculated using an 11-point Likert scale, ranging from 0 (no pain) to 10 (worst pain ever experienced).
- Change From Baseline in Fibromyalgia Impact Questionnaire (FIQ) Total Score to the Last Assessment in the 12-week Treatment Phase [ Time Frame: Baseline, Last assessment in the 12-week Treatment Phase ]The Fibromyalgia Impact Questionnaire (FIQ) Total Score ranges from 0 to 100 with higher scores corresponding to a greater impact of fibromyalgia
- Change From Baseline in Total Myalgic Score to the Last Assessment in the 12-week Treatment Phase [ Time Frame: Baseline, Last assessment in the 12-week Treatment Phase ]Total Myalgic Score ranges from 0 to 54 with higher scores corresponding to a greater level of pain.
- Change From Baseline in Average Daily Interference With Sleep to the Last 2 Weeks of the 12-week Treatment Phase [ Time Frame: Baseline, Last 2 weeks of the 12-week Treatment Phase ]Sleep scale - the subject rated quality of sleep, from 0 (very good sleep) to 10 (very poor sleep)
- Change From Baseline in Daily Interference With General Activity to the Last 2 Weeks of the 12-week Treatment Phase [ Time Frame: Baseline, Last 2 weeks of the 12-week Treatment Phase ]General activity scale - the subject rated how the pain had interfered with general activity, from 0 (did not interfere) to 10 (completely interfered)
- Change From Baseline in Morning Pain Score to the Last 2 Weeks of the 12-week Treatment Phase [ Time Frame: Baseline, Last 2 weeks of the 12 week Treatment Phase ]An 11-point Likert scale was used for subjects to assess pain, from 0 (no pain) to 10 (worst pain ever experienced).
- Change From Baseline in Evening Pain Score to the Last 2 Weeks of the 12-week Treatment Phase [ Time Frame: Baseline, Last 2 weeks of the 12 week Treatment Phase ]An 11-point Likert scale was used for subjects to assess pain, from 0 (no pain) to 10 (worst pain ever experienced).
- Patient Global Impression of Change (PGIC) Assessment From Baseline to the Last Assessment in the 12-week Treatment Phase [ Time Frame: Baseline, Last assessment in the 12-week Treatment Phase ]The PGIC is a 7-point self-administered categorical rating scale in which the subject rated the change in pain since starting trial medication (from much worse [score of 1] to much better [score of 7]).
- Change From Baseline in Hospital Anxiety and Depression Scale (HADS) Scores to the Last Assessment in the 12-week Treatment Phase [ Time Frame: Baseline, Last assessment in the 12-week Treatment Phase ]The Hospital Anxiety and Depression Scale (HADS) is a self-administered instrument for detecting anxiety and depression in medical outpatients. Scores range from 0 to 21 for each subscale with higher scores reflecting a greater level of anxiety or depression.
- Percentage of Patients Using Rescue Medication During the 12-week Treatment Phase [ Time Frame: 12-week Treatment Phase ]Subjects recorded use of rescue medication for pain in the diary daily in the evening with a Yes/No response.
- Percentage of Patients Using Alcohol for Pain During the 12-week Treatment Phase [ Time Frame: 12-week Treatment Phase ]Use of alcohol to treat pain in the past 24 hours was recorded (Yes/No response).
- Change From Baseline in Fibromyalgia Symptom Scores to the Last Assessment in the 12-week Treatment Phase [ Time Frame: Baseline, Last assessment in the 12-week Treatment Phase ]All scores range from 0 to 10 with higher scores corresponding to a greater level of symptom severity.
- Lacosamide Plasma Concentration at the End of the Maintenance Phase/ Week 12 [ Time Frame: End of the Maintenance Phase/Week 12 ]

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years to 65 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Males or females, 18 to 65 years old
- Fulfills all 3 points of American College of Rheumatology (ACR) definition for diagnosis of fibromyalgia
- At least moderate pain (pain intensity ≥ 5 on Likert pain scale (0-10) during the 7 days prior to Baseline)
- Fibromyalgia Impact Questionnaire (FIQ) total score ≥ 50
- Completed an adequate washout period for excluded medications prior to beginning the Baseline Diary Phase
Exclusion Criteria:
- Symptomatic regional or structural rheumatic disease
- Diagnosed neuropathic pain syndrome
- Receiving treatment with neurostimulating devices
- Significant psychopathology
- History of chronic alcohol or drug abuse within 6 months prior to Screening
- Been hospitalized for psychiatric or behavioral reasons within 6 months prior to Screening
- Clinically significant abnormal vitals, cardiac dysfunction and /or arrhythmias
- Taken neuroleptics, serotonin and norepinephrine reuptake inhibitors (SNRIs) or tricyclic antidepressants (TCAs)
- Other medical conditions that could compromise the subject's ability to participate in the study

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00401830
United States, Arizona | |
Litchfield Park, Arizona, United States | |
United States, California | |
Santa Ana, California, United States, 92705 | |
Walnut Creek, California, United States, 94598 | |
United States, Florida | |
Deerfield Beach, Florida, United States, 33064 | |
Fort Lauderdale, Florida, United States, 33334 | |
Fort Myers, Florida, United States, 33916 | |
Tampa, Florida, United States, 33614 | |
United States, Georgia | |
Athens, Georgia, United States | |
Decatur, Georgia, United States, 30033 | |
United States, Illinois | |
Peoria, Illinois, United States, 61614 | |
United States, Indiana | |
Evansville, Indiana, United States, 47714 | |
United States, Kentucky | |
Madisonville, Kentucky, United States, 42431 | |
United States, Maryland | |
Columbia, Maryland, United States, 21045 | |
Frederick, Maryland, United States, 21702 | |
United States, Massachusetts | |
Brockton, Massachusetts, United States, 20301 | |
United States, North Carolina | |
Charlotte, North Carolina, United States, 28210 | |
Winston-Salem, North Carolina, United States, 27103 | |
United States, Ohio | |
Mogadore, Ohio, United States, 44260 | |
Toledo, Ohio, United States, 43623 | |
United States, South Carolina | |
Goose Creek, South Carolina, United States, 29445 | |
United States, Tennessee | |
Memphis, Tennessee, United States, 30033 | |
United States, Texas | |
San Antonio, Texas, United States, 78213 | |
San Antonio, Texas, United States | |
United States, Virginia | |
Richmond, Virginia, United States, 23294 | |
United States, Washington | |
Kirkland, Washington, United States, 98033 |
Study Director: | UCB Clinical Trial Call Center | +1 877 822 9493 (UCB) |
Responsible Party: | UCB Pharma |
ClinicalTrials.gov Identifier: | NCT00401830 |
Other Study ID Numbers: |
SP0887 |
First Posted: | November 22, 2006 Key Record Dates |
Results First Posted: | October 22, 2009 |
Last Update Posted: | July 18, 2018 |
Last Verified: | July 2017 |
Fibromyalgia Syndrome Lacosamide Vimpat Harkoseride |
Fibromyalgia Myofascial Pain Syndromes Syndrome Disease Pathologic Processes Muscular Diseases Musculoskeletal Diseases Rheumatic Diseases |
Neuromuscular Diseases Nervous System Diseases Lacosamide Anticonvulsants Voltage-Gated Sodium Channel Blockers Sodium Channel Blockers Membrane Transport Modulators Molecular Mechanisms of Pharmacological Action |